You know the feeling. When you first see your crush and your head starts spinning, your palms get sweaty, and your heart begins beating a mile a minute. Is this love? Or is it … an arrhythmia?

Following the initial sequences, the video focuses on the story of a young woman who is having open heart surgery. It shows real-life images of the surgery and a real beating heart. It also shows ...

My heart was beating really fast, but I don’t have symptoms now. Should I see a doctor? If you’ve asked yourself this question, then you’ve probably noticed your heart skipping a beat, fluttering, or ...

View Full Profile. Learn about our Editorial Policies. The simple, constant rhythm of a beating heart is a reassuring sign of life. With each lub-dub, blood brings life-sustaining oxygen throughout ...